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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * $Id: ProcessFilesTask.html 93 2010-04-26 01:47:14Z samaxes $<a name="line.2"></a>
<FONT color="green">003</FONT>     *<a name="line.3"></a>
<FONT color="green">004</FONT>     * MinifyMojo Maven Plugin<a name="line.4"></a>
<FONT color="green">005</FONT>     * http://code.google.com/p/maven-samaxes-plugin/<a name="line.5"></a>
<FONT color="green">006</FONT>     *<a name="line.6"></a>
<FONT color="green">007</FONT>     * Copyright (c) 2009 samaxes.com<a name="line.7"></a>
<FONT color="green">008</FONT>     * <a name="line.8"></a>
<FONT color="green">009</FONT>     * Licensed under the Apache License, Version 2.0 (the "License");<a name="line.9"></a>
<FONT color="green">010</FONT>     * you may not use this file except in compliance with the License.<a name="line.10"></a>
<FONT color="green">011</FONT>     * You may obtain a copy of the License at<a name="line.11"></a>
<FONT color="green">012</FONT>     * <a name="line.12"></a>
<FONT color="green">013</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.13"></a>
<FONT color="green">014</FONT>     * <a name="line.14"></a>
<FONT color="green">015</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.15"></a>
<FONT color="green">016</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.16"></a>
<FONT color="green">017</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.17"></a>
<FONT color="green">018</FONT>     * See the License for the specific language governing permissions and<a name="line.18"></a>
<FONT color="green">019</FONT>     * limitations under the License.<a name="line.19"></a>
<FONT color="green">020</FONT>     */<a name="line.20"></a>
<FONT color="green">021</FONT>    package com.samaxes.maven.plugin.minify;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import java.io.File;<a name="line.23"></a>
<FONT color="green">024</FONT>    import java.io.FileOutputStream;<a name="line.24"></a>
<FONT color="green">025</FONT>    import java.io.IOException;<a name="line.25"></a>
<FONT color="green">026</FONT>    import java.io.OutputStream;<a name="line.26"></a>
<FONT color="green">027</FONT>    import java.io.SequenceInputStream;<a name="line.27"></a>
<FONT color="green">028</FONT>    import java.util.ArrayList;<a name="line.28"></a>
<FONT color="green">029</FONT>    import java.util.List;<a name="line.29"></a>
<FONT color="green">030</FONT>    <a name="line.30"></a>
<FONT color="green">031</FONT>    import org.apache.maven.plugin.logging.Log;<a name="line.31"></a>
<FONT color="green">032</FONT>    import org.codehaus.plexus.util.DirectoryScanner;<a name="line.32"></a>
<FONT color="green">033</FONT>    import org.codehaus.plexus.util.StringUtils;<a name="line.33"></a>
<FONT color="green">034</FONT>    <a name="line.34"></a>
<FONT color="green">035</FONT>    import com.samaxes.maven.plugin.common.ListOfFiles;<a name="line.35"></a>
<FONT color="green">036</FONT>    <a name="line.36"></a>
<FONT color="green">037</FONT>    /**<a name="line.37"></a>
<FONT color="green">038</FONT>     * Abstract class for merging and compressing a files list.<a name="line.38"></a>
<FONT color="green">039</FONT>     */<a name="line.39"></a>
<FONT color="green">040</FONT>    public abstract class ProcessFilesTask implements Runnable {<a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>        protected static final String SUFFIX = ".min";<a name="line.42"></a>
<FONT color="green">043</FONT>    <a name="line.43"></a>
<FONT color="green">044</FONT>        private static final String[] EMPTY_STRING_ARRAY = {};<a name="line.44"></a>
<FONT color="green">045</FONT>    <a name="line.45"></a>
<FONT color="green">046</FONT>        protected Log log;<a name="line.46"></a>
<FONT color="green">047</FONT>    <a name="line.47"></a>
<FONT color="green">048</FONT>        protected File targetDir;<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>        protected File finalFile;<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>        protected int linebreak;<a name="line.52"></a>
<FONT color="green">053</FONT>    <a name="line.53"></a>
<FONT color="green">054</FONT>        private Integer bufferSize;<a name="line.54"></a>
<FONT color="green">055</FONT>    <a name="line.55"></a>
<FONT color="green">056</FONT>        private File sourceDir;<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>        private List&lt;File&gt; files = new ArrayList&lt;File&gt;();<a name="line.58"></a>
<FONT color="green">059</FONT>    <a name="line.59"></a>
<FONT color="green">060</FONT>        /**<a name="line.60"></a>
<FONT color="green">061</FONT>         * Task constructor.<a name="line.61"></a>
<FONT color="green">062</FONT>         * <a name="line.62"></a>
<FONT color="green">063</FONT>         * @param log Maven plugin log<a name="line.63"></a>
<FONT color="green">064</FONT>         * @param bufferSize size of the buffer used to read source files.<a name="line.64"></a>
<FONT color="green">065</FONT>         * @param webappSourceDir web resources source directory<a name="line.65"></a>
<FONT color="green">066</FONT>         * @param webappTargetDir web resources target directory<a name="line.66"></a>
<FONT color="green">067</FONT>         * @param filesDir directory containing input files<a name="line.67"></a>
<FONT color="green">068</FONT>         * @param filenames filenames list<a name="line.68"></a>
<FONT color="green">069</FONT>         * @param sourceIncludes comma separated list of source files to include<a name="line.69"></a>
<FONT color="green">070</FONT>         * @param sourceExcludes comma separated list of source files to exclude<a name="line.70"></a>
<FONT color="green">071</FONT>         * @param finalFilename final filename<a name="line.71"></a>
<FONT color="green">072</FONT>         * @param linebreak split long lines after a specific column<a name="line.72"></a>
<FONT color="green">073</FONT>         */<a name="line.73"></a>
<FONT color="green">074</FONT>        public ProcessFilesTask(Log log, Integer bufferSize, String webappSourceDir, String webappTargetDir,<a name="line.74"></a>
<FONT color="green">075</FONT>                String filesDir, List&lt;String&gt; filenames, String sourceIncludes, String sourceExcludes,<a name="line.75"></a>
<FONT color="green">076</FONT>                String finalFilename, int linebreak) {<a name="line.76"></a>
<FONT color="green">077</FONT>            this.log = log;<a name="line.77"></a>
<FONT color="green">078</FONT>            this.bufferSize = bufferSize;<a name="line.78"></a>
<FONT color="green">079</FONT>            this.linebreak = linebreak;<a name="line.79"></a>
<FONT color="green">080</FONT>            this.sourceDir = new File(webappSourceDir.concat(File.separator).concat(filesDir));<a name="line.80"></a>
<FONT color="green">081</FONT>            this.targetDir = new File(webappTargetDir.concat(File.separator).concat(filesDir));<a name="line.81"></a>
<FONT color="green">082</FONT>    <a name="line.82"></a>
<FONT color="green">083</FONT>            List&lt;File&gt; includedFiles = (sourceIncludes != null &amp;&amp; !"".equals(sourceIncludes)) ? getFilesToInclude(<a name="line.83"></a>
<FONT color="green">084</FONT>                    sourceDir, sourceIncludes, sourceExcludes) : new ArrayList&lt;File&gt;();<a name="line.84"></a>
<FONT color="green">085</FONT>            for (String filename : filenames) {<a name="line.85"></a>
<FONT color="green">086</FONT>                File sourceFile = new File(sourceDir, filename);<a name="line.86"></a>
<FONT color="green">087</FONT>                log.debug("Adding source file [" + sourceFile.getName() + "]");<a name="line.87"></a>
<FONT color="green">088</FONT>                files.add(sourceFile);<a name="line.88"></a>
<FONT color="green">089</FONT>            }<a name="line.89"></a>
<FONT color="green">090</FONT>            for (File includedFile : includedFiles) {<a name="line.90"></a>
<FONT color="green">091</FONT>                if (!files.contains(includedFile)) {<a name="line.91"></a>
<FONT color="green">092</FONT>                    log.debug("Adding source file [" + includedFile.getName() + "]");<a name="line.92"></a>
<FONT color="green">093</FONT>                    files.add(includedFile);<a name="line.93"></a>
<FONT color="green">094</FONT>                }<a name="line.94"></a>
<FONT color="green">095</FONT>            }<a name="line.95"></a>
<FONT color="green">096</FONT>    <a name="line.96"></a>
<FONT color="green">097</FONT>            if (targetDir.exists() || targetDir.mkdirs()) {<a name="line.97"></a>
<FONT color="green">098</FONT>                this.finalFile = new File(targetDir, finalFilename);<a name="line.98"></a>
<FONT color="green">099</FONT>            }<a name="line.99"></a>
<FONT color="green">100</FONT>        }<a name="line.100"></a>
<FONT color="green">101</FONT>    <a name="line.101"></a>
<FONT color="green">102</FONT>        /**<a name="line.102"></a>
<FONT color="green">103</FONT>         * Method executed by the thread.<a name="line.103"></a>
<FONT color="green">104</FONT>         */<a name="line.104"></a>
<FONT color="green">105</FONT>        public void run() {<a name="line.105"></a>
<FONT color="green">106</FONT>            mergeFiles();<a name="line.106"></a>
<FONT color="green">107</FONT>            minify();<a name="line.107"></a>
<FONT color="green">108</FONT>        }<a name="line.108"></a>
<FONT color="green">109</FONT>    <a name="line.109"></a>
<FONT color="green">110</FONT>        /**<a name="line.110"></a>
<FONT color="green">111</FONT>         * Returns a string array of the includes to be used when adding source files.<a name="line.111"></a>
<FONT color="green">112</FONT>         * <a name="line.112"></a>
<FONT color="green">113</FONT>         * @param include comma separated list of source files to include<a name="line.113"></a>
<FONT color="green">114</FONT>         * @return an array of tokens to include<a name="line.114"></a>
<FONT color="green">115</FONT>         */<a name="line.115"></a>
<FONT color="green">116</FONT>        private String[] getIncludes(String include) {<a name="line.116"></a>
<FONT color="green">117</FONT>            return StringUtils.split(StringUtils.defaultString(include), ",");<a name="line.117"></a>
<FONT color="green">118</FONT>        }<a name="line.118"></a>
<FONT color="green">119</FONT>    <a name="line.119"></a>
<FONT color="green">120</FONT>        /**<a name="line.120"></a>
<FONT color="green">121</FONT>         * Returns a string array of the excludes to be used when adding source files.<a name="line.121"></a>
<FONT color="green">122</FONT>         * <a name="line.122"></a>
<FONT color="green">123</FONT>         * @param exclude comma separated list of source files to exclude<a name="line.123"></a>
<FONT color="green">124</FONT>         * @return an array of tokens to exclude<a name="line.124"></a>
<FONT color="green">125</FONT>         */<a name="line.125"></a>
<FONT color="green">126</FONT>        private String[] getExcludes(String exclude) {<a name="line.126"></a>
<FONT color="green">127</FONT>            return (StringUtils.isNotEmpty(exclude)) ? StringUtils.split(exclude, ",") : EMPTY_STRING_ARRAY;<a name="line.127"></a>
<FONT color="green">128</FONT>        }<a name="line.128"></a>
<FONT color="green">129</FONT>    <a name="line.129"></a>
<FONT color="green">130</FONT>        /**<a name="line.130"></a>
<FONT color="green">131</FONT>         * Returns the files to copy. Even if the excludes are &lt;code&gt;null&lt;/code&gt;, the default excludes are used.<a name="line.131"></a>
<FONT color="green">132</FONT>         * <a name="line.132"></a>
<FONT color="green">133</FONT>         * @param baseDir the base directory to start from<a name="line.133"></a>
<FONT color="green">134</FONT>         * @param include comma separated list of source files to include<a name="line.134"></a>
<FONT color="green">135</FONT>         * @param exclude comma separated list of source files to exclude<a name="line.135"></a>
<FONT color="green">136</FONT>         * @return the files to copy<a name="line.136"></a>
<FONT color="green">137</FONT>         */<a name="line.137"></a>
<FONT color="green">138</FONT>        private List&lt;File&gt; getFilesToInclude(File baseDir, String include, String exclude) {<a name="line.138"></a>
<FONT color="green">139</FONT>            DirectoryScanner scanner = new DirectoryScanner();<a name="line.139"></a>
<FONT color="green">140</FONT>            List&lt;File&gt; includedFiles = new ArrayList&lt;File&gt;();<a name="line.140"></a>
<FONT color="green">141</FONT>            String[] includedFilenames;<a name="line.141"></a>
<FONT color="green">142</FONT>            String[] includes = getIncludes(include);<a name="line.142"></a>
<FONT color="green">143</FONT>            String[] excludes = getExcludes(exclude);<a name="line.143"></a>
<FONT color="green">144</FONT>    <a name="line.144"></a>
<FONT color="green">145</FONT>            scanner.setBasedir(baseDir);<a name="line.145"></a>
<FONT color="green">146</FONT>    <a name="line.146"></a>
<FONT color="green">147</FONT>            if (excludes != null) {<a name="line.147"></a>
<FONT color="green">148</FONT>                scanner.setExcludes(excludes);<a name="line.148"></a>
<FONT color="green">149</FONT>            }<a name="line.149"></a>
<FONT color="green">150</FONT>            scanner.addDefaultExcludes();<a name="line.150"></a>
<FONT color="green">151</FONT>    <a name="line.151"></a>
<FONT color="green">152</FONT>            if (includes != null &amp;&amp; includes.length &gt; 0) {<a name="line.152"></a>
<FONT color="green">153</FONT>                scanner.setIncludes(includes);<a name="line.153"></a>
<FONT color="green">154</FONT>            }<a name="line.154"></a>
<FONT color="green">155</FONT>    <a name="line.155"></a>
<FONT color="green">156</FONT>            scanner.scan();<a name="line.156"></a>
<FONT color="green">157</FONT>            includedFilenames = scanner.getIncludedFiles();<a name="line.157"></a>
<FONT color="green">158</FONT>    <a name="line.158"></a>
<FONT color="green">159</FONT>            for (String includedFilename : includedFilenames) {<a name="line.159"></a>
<FONT color="green">160</FONT>                includedFiles.add(new File(baseDir, includedFilename));<a name="line.160"></a>
<FONT color="green">161</FONT>            }<a name="line.161"></a>
<FONT color="green">162</FONT>    <a name="line.162"></a>
<FONT color="green">163</FONT>            return includedFiles;<a name="line.163"></a>
<FONT color="green">164</FONT>        }<a name="line.164"></a>
<FONT color="green">165</FONT>    <a name="line.165"></a>
<FONT color="green">166</FONT>        /**<a name="line.166"></a>
<FONT color="green">167</FONT>         * Merges files list.<a name="line.167"></a>
<FONT color="green">168</FONT>         */<a name="line.168"></a>
<FONT color="green">169</FONT>        private void mergeFiles() {<a name="line.169"></a>
<FONT color="green">170</FONT>            ListOfFiles listOfFiles = new ListOfFiles(this.log, files);<a name="line.170"></a>
<FONT color="green">171</FONT>    <a name="line.171"></a>
<FONT color="green">172</FONT>            log.info("Merging files " + listOfFiles.toString());<a name="line.172"></a>
<FONT color="green">173</FONT>            if (listOfFiles.size() &gt; 0) {<a name="line.173"></a>
<FONT color="green">174</FONT>                try {<a name="line.174"></a>
<FONT color="green">175</FONT>                    SequenceInputStream sequence = new SequenceInputStream(listOfFiles);<a name="line.175"></a>
<FONT color="green">176</FONT>                    OutputStream out = new FileOutputStream(finalFile);<a name="line.176"></a>
<FONT color="green">177</FONT>                    byte[] buffer = new byte[bufferSize];<a name="line.177"></a>
<FONT color="green">178</FONT>                    int length;<a name="line.178"></a>
<FONT color="green">179</FONT>                    while ((length = sequence.read(buffer)) &gt; 0) {<a name="line.179"></a>
<FONT color="green">180</FONT>                        out.write(buffer, 0, length);<a name="line.180"></a>
<FONT color="green">181</FONT>                    }<a name="line.181"></a>
<FONT color="green">182</FONT>    <a name="line.182"></a>
<FONT color="green">183</FONT>                    sequence.close();<a name="line.183"></a>
<FONT color="green">184</FONT>                    out.close();<a name="line.184"></a>
<FONT color="green">185</FONT>                } catch (IOException e) {<a name="line.185"></a>
<FONT color="green">186</FONT>                    log.error("An error has occurred while concatenating files.", e);<a name="line.186"></a>
<FONT color="green">187</FONT>                }<a name="line.187"></a>
<FONT color="green">188</FONT>            }<a name="line.188"></a>
<FONT color="green">189</FONT>        }<a name="line.189"></a>
<FONT color="green">190</FONT>    <a name="line.190"></a>
<FONT color="green">191</FONT>        /**<a name="line.191"></a>
<FONT color="green">192</FONT>         * Minifies source file.<a name="line.192"></a>
<FONT color="green">193</FONT>         */<a name="line.193"></a>
<FONT color="green">194</FONT>        abstract void minify();<a name="line.194"></a>
<FONT color="green">195</FONT>    }<a name="line.195"></a>




























































</PRE>
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